Prime day is the annual shopping holiday (like Black Friday and Cyber Monday) exclusively for Prime members. Unlike most holiday sales, Amazon Prime Day occurs each summer typically around July and will last for a few days. With Amazon taking up to 50% of the U.S. eCommerce market, Prime Day alone can drive an increase in sales and traffic to sellers. In 2018, Prime Day was 36 hours and started from 24 hours in 2015. This year, on Amazon’s 5th Prime Day take full advantage of by following these tips to help you prepare.